#MedLab

@RoyChibuike High-dose PPI for 72 hours (IV bolus then infusion, or high-dose oral) right after endoscopic haemostasis, then oral PPI daily for about 8 weeks (up to 6-8 weeks total) to heal the ulcer. Treat H. pylori if present. #MedLab #MLS

First line drug for anaphylaxis ????

@Madihealth2026 Intramuscular adrenaline (epinephrine) is the first-line drug for anaphylaxis. Give it in the anterolateral mid-thigh immediately (0.5 mg of 1:1000 in adults), and repeat every 5-15 minutes if needed. Antihistamines and steroids are only adjuncts. #MedLab #MLS

@EZEKIELOZUMBA1 C) Terminal ileum. Vitamin B12 bound to intrinsic factor (from stomach parietal cells) is absorbed here via specific receptors. Crohn's disease or ileal resection causes B12 deficiency. #MedLab #MLS

Good night, lab family! 🌙 End the week with this: the health you build today decides how you'll live at 50, 60 and beyond. Small daily habits prevent big complications later. Here are 4 habits to start tonight 👇 #MedLab #MLS

Hi all #MedLab peeps, question for you; what are some must haves in your lab coat pocket when you're working in the lab? 🤔 If different specialities have different special things that are necessary to have what would they be? 🥼🧑‍🔬🧫🧪🔬🩸 @WeBMScientists @WeHCScientists

First choice of drug for psoriasis ????

@Madihealth2026 Topical corticosteroids (e.g., betamethasone, clobetasol) are the first choice for mild to moderate plaque psoriasis, often combined with vitamin D analogues (calcipotriol). Severe cases need methotrexate or biologics. #MedLab #MLS

Quiz time! 🧠 A patient is on long-term warfarin. Which test is used to monitor the effect of the drug? A) aPTT B) INR (PT) C) Bleeding time D) Platelet count Drop your answer below 👇 #MedLab #MLS

@EZEKIELOZUMBA1 B) Spironolactone. It's a competitive aldosterone receptor antagonist that blocks Na⁺ reabsorption and K⁺ loss in the collecting duct. Also used in heart failure and ascites. Watch for high K⁺ and gynaecomastia. #MedLab #MLS

Every 60 seconds, someone in Canada needs blood. Drawing, testing, and analyzing your blood are some of the ways #MedLab professionals play a vital role in your health care. We see you, do you see us? #SeeTheLab at

How insulinoma causes global cerebral injury (ischemia) ❓

@siddiq_khyal Insulinoma causes neuroglycopenia, not true ischemia. Excess insulin drops blood glucose, and the brain depends on glucose for ATP. Without it, neurons fail, ion pumps stop, and glutamate excitotoxicity kills cells, so injury looks global. #MedLab #MLS

Lab tip: Always ask your patient about drugs and supplements before collecting a sample. Biotin can falsely alter thyroid and hormone tests, vitamin C can interfere with glucose strips, and steroids raise blood sugar. Good history means reliable results. 🔬 #MedLab #MLS

@EZEKIELOZUMBA1 Cortisol. Made by the adrenal cortex (zona fasciculata) under ACTH control, it raises blood glucose, suppresses inflammation and helps the body handle stress. Excess causes Cushing's; deficiency causes Addison's. #MedLab #MLS

@UgorjiGabby B-cells make antibodies. When they meet their antigen, they become plasma cells that secrete large amounts of antibody, and memory B-cells that give faster protection on re-exposure. They also present antigen to T-helper cells. #MedLab #MLS

@EZEKIELOZUMBA1 A) Sevoflurane. Volatile anaesthetics (sevoflurane, halothane) and suxamethonium trigger malignant hyperthermia in people with RYR1 mutations, causing a Ca²⁺ surge, muscle rigidity, fever and high CO₂. Treat with dantrolene. #MedLab #MLS

@RoyChibuike No IV fluid treats high BP. Fluids can actually raise it. If a hypertensive patient needs fluid, avoid sodium-rich saline and use 5% dextrose (D5W) cautiously. Hypertensive emergencies get IV labetalol, GTN or nitroprusside instead. #MedLab #MLS

Q. Nephrotoxicity is seen with which drug? A) Leflunomide. B) Tacrolimus. C) Sulfasalazine. D) Azathioprine.

@MedLearnHub B) Tacrolimus. It's a calcineurin inhibitor that constricts the afferent arteriole, lowering GFR and causing acute and chronic kidney injury. Also causes high K⁺, tremor and diabetes. Monitor trough levels and creatinine. #MedLab #MLS

Which structure in the kidney is responsible for concentrating urine through the countercurrent mechanism? A) Bowman's capsule B) Loop of Henle C) Proximal convoluted tubule D) Glomerulus

@girls_page_yt B) Loop of Henle. The descending limb is water-permeable and the ascending limb pumps out salt, building a gradient in the medulla. The vasa recta keeps it in place, and ADH then lets water leave the collecting duct, so urine is concentrated. #MedLab #MLS

Pituitary gland is located in?? A) Neck B) Chest C) Abdomen D) Brain

@Abusarki300 D) Brain. The pituitary sits in the sella turcica, a small bony pocket of the sphenoid bone at the base of the brain, just below the hypothalamus. It's the "master gland" controlling the thyroid, adrenals and gonads. #MedLab #MLS

‘’Coffee bean sign’’ is classically seen in which condition?????

@Madihealth2026 Sigmoid volvulus. On abdominal X-ray, the twisted, hugely dilated sigmoid loop looks like a coffee bean, pointing up toward the right upper quadrant. Causes obstruction with constipation and distension. Treat with decompression. #MedLab #MLS

Drugs of choice for IBS ????

@Madihealth2026 There's no single drug of choice for IBS, so treatment targets the main symptom: antispasmodics (hyoscine, mebeverine) for pain, loperamide for diarrhoea, laxatives (psyllium, PEG) for constipation, low-dose amitriptyline for refractory pain. #MedLab #MLS